The surface of the stainless steel plate is smooth, has high plasticity, toughness and mechanical strength, and is resistant to acid, alkaline gas, solution and other media corrosion. It is an alloy steel that is not easy to rust, but it is not absolutely rust free. Stainless steel plate refers to the steel plate that is resistant to the corrosion of weak media such as atmosphere, steam and water, while the acid-resistant steel plate refers to the steel plate that is resistant to the corrosion of chemical etched media such as acid, alkali and salt. Stainless steel plate since the beginning of the 20th century, to now has more than 1 century of history. Stainless steel plate is generally a general term for stainless steel plate and acid-resistant steel plate. Stainless steel plate refers to the steel plate that is resistant to the corrosion of weak media such as atmosphere, steam and water, while the acid-resistant steel plate refers to the steel plate that is resistant to the corrosion of chemical etched media such as acid, alkali and salt. Since the advent of stainless steel plate at the beginning of this century, the development of stainless steel plate has laid an important material and technological foundation for the development of modern industry and scientific and technological progress. There are many kinds of stainless steel plates with different properties, and it has gradually formed several categories in the development process. According to the structure, it is divided into four categories: austenitic stainless steel plate, martensitic stainless steel plate (including precipitation hardening stainless steel plate), ferritic stainless steel plate, and austenitic ferritic duplex stainless steel plate. According to the main chemical composition of the steel plate or some characteristic elements in the steel plate to classify, divided into chromium stainless steel plate, chromium nickel stainless steel plate, chromium nickel molybdenum stainless steel plate and low carbon stainless steel plate, high molybdenum stainless steel plate, high purity stainless steel plate and so on. According to the performance characteristics and uses of the steel plate, it is divided into nitric acid resistant stainless steel plate, sulfuric acid resistant stainless steel plate, pitting stainless steel plate, stress corrosion resistant stainless steel plate, high strength stainless steel plate and so on. According to the functional characteristics of the steel plate, it is divided into low temperature stainless steel plate, no magnetic stainless steel plate, easy cutting stainless steel plate, super plastic stainless steel plate. The commonly used classification method is classified according to the structural characteristics of the steel plate and the chemical composition characteristics of the steel plate and the combination of the two methods. Generally divided into martensitic stainless steel plate, ferritic stainless steel plate, austenitic stainless steel plate, duplex stainless steel plate and precipitation hardening type stainless steel plate or divided into chromium stainless steel plate and nickel stainless steel plate two categories. Typical uses: pulp and paper equipment Heat exchanger, mechanical equipment, dyeing equipment, film washing equipment, pipelines, coastal area building external materials, etc. There are two kinds of hot rolled and cold rolled according to the manufacturing method, including thin cold plate with a thickness of 0.5.10-885 mm 72938 and medium thick plate with a thickness of 4.5-100 mm. Requirements can withstand oxalic acid, sulfuric acid-ferric sulfate, nitric acid, nitric acid-hydrofluoric acid, sulfuric acid-copper sulfate, phosphoric acid, formic acid, acetic acid and other acids corrosion, widely used in chemical, food, medicine, paper making, petroleum, atomic energy and other industries, as well as construction, kitchen utensils, tableware, vehicles, household appliances and various parts. In order to ensure that the mechanical properties of all kinds of stainless steel plates such as yield strength, tensile strength, elongation and hardness meet the requirements, the steel plate must be annealing, solution treatment, aging treatment and other heat treatment before delivery. The corrosion resistance of stainless steel mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, manganese, etc.) and internal organizational structure. There are two kinds of hot rolling and cold rolling according to the preparation method, and they are divided into 5 categories according to the structure characteristics of steel: austenitic type, austenite-ferritic type, ferritic type, martensitic type and precipitation-hardening type. The surface of the stainless steel plate is smooth, has high plasticity, toughness and mechanical strength, and is resistant to acid, alkaline gas, solution and other media corrosion. It is an alloy steel that is not easy to rust, but it is not absolutely rust free.
